organic compounds\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

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1-(2,3,4-Tri­hydroxy­benzyl­­idene)-4-ethyl­thio­semicarbazide

aDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: mjamil@um.edu.my

(Received 8 April 2010; accepted 16 April 2010; online 24 April 2010)

In the title mol­ecule, C10H13N3O3S, the thio­semicarbazide =N—NH—C(=S)—NH– fragment is twisted with respect to the aromatic ring [dihedral angle = 20.5 (1)°]. A weak N—H⋯S hydrogen bond [3.480 (1) Å] links two mol­ecules about a center of inversion to generate a ring. The hydr­oxy groups are engaged in inter­molecular hydrogen bonding; the O—H⋯O and O—H⋯S hydrogen bonds generate a layer motif.

Related literature

For the crystal structures of 3,4-dihydroxy­benzaldehyde 4-ethyl­thio­semicarbazone and 2,4-dihydroxy­benzaldehyde 4-ethyl­thio­semicarbazone, see: Kayed et al. (2008[Kayed, S. F., Farina, Y., Baba, I. & Simpson, J. (2008). Acta Cryst. E64, o824-o825.]); Tan et al. (2008[Tan, K. W., Ng, C. H., Maah, M. J. & Ng, S. W. (2008). Acta Cryst. E64, o2123.]).

[Scheme 1]

Experimental

Crystal data
  • C10H13N3O3S

  • Mr = 255.29

  • Monoclinic, P 21 /c

  • a = 7.5668 (5) Å

  • b = 14.6754 (10) Å

  • c = 10.8700 (7) Å

  • β = 104.711 (1)°

  • V = 1167.50 (13) Å3

  • Z = 4

  • Mo Kα radiation

  • μ = 0.28 mm−1

  • T = 100 K

  • 0.30 × 0.20 × 0.10 mm

Data collection
  • Bruker SMART APEX diffractometer

  • Absorption correction: multi-scan (SADABS; Sheldrick, 1996[Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.]) Tmin = 0.921, Tmax = 0.973

  • 10870 measured reflections

  • 2660 independent reflections

  • 2364 reflections with I > 2σ(I)

  • Rint = 0.026

Refinement
  • R[F2 > 2σ(F2)] = 0.029

  • wR(F2) = 0.082

  • S = 1.04

  • 2660 reflections

  • 174 parameters

  • 5 restraints

  • H atoms treated by a mixture of independent and constrained refinement

  • Δρmax = 0.34 e Å−3

  • Δρmin = −0.22 e Å−3

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A D—H H⋯A DA D—H⋯A
O1—H1O⋯O2 0.83 (1) 2.26 (2) 2.717 (1) 115 (2)
O1—H1O⋯S1i 0.83 (1) 2.55 (1) 3.291 (1) 150 (2)
O2—H2O⋯O3 0.84 (1) 2.31 (2) 2.745 (1) 112 (2)
O2—H2O⋯O1ii 0.84 (1) 2.07 (1) 2.832 (1) 151 (2)
O3—H3O⋯S1iii 0.84 (1) 2.36 (1) 3.189 (1) 170 (2)
N2—H2N⋯S1iv 0.87 2.62 3.480 (1) 171
Symmetry codes: (i) [-x+1, y-{\script{1\over 2}}, -z+{\script{1\over 2}}]; (ii) [x, -y+{\script{1\over 2}}, z-{\script{1\over 2}}]; (iii) x, y, z-1; (iv) -x+1, -y+1, -z+1.

Data collection: APEX2 software (Bruker, 2009[Bruker (2009). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT (Bruker, 2009[Bruker (2009). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); molecular graphics: X-SEED (Barbour, 2001[Barbour, L. J. (2001). J. Supramol. Chem. 1, 189-191.]); software used to prepare material for publication: publCIF (Westrip, 2010[Westrip, S. P. (2010). publCIF. In preparation.]).

Supporting information


Related literature top

For the crystal structures of 3,4-dihydroxybenzaldehyde 4-ethylthiosemicarbazone and 2,4-dihydroxybenzaldehyde 4-ethylthiosemicarbazone, see: Kayed et al. (2008); Tan et al. (2008).

Experimental top

2,3,4-Trihydroxybenzaldehyde (1.54 g, 10 mmol) and 4-ethylthiosemicarbazide (1.19 g, 1 mmol) were heated in ethanol (20 ml) for 2 hours; acetic acid (0.5 ml) was also added. A brown solid separated from the cool solution; this was recrystallized from methanol.

Refinement top

Carbon-bound H-atoms were placed in calculated positions (C—H 0.95 to 0.98 Å) and were included in the refinement in the riding model approximation, with U(H) set to 1.2 or 1.5U(CMe).

The amino and hydroxy H-atoms were located in a difference Fourier map, and were refined with distance restraints of N–H 0.86±0.01 and O–H 0.84±0.01 Å; their temperature factors were freely refined.

Structure description top

For the crystal structures of 3,4-dihydroxybenzaldehyde 4-ethylthiosemicarbazone and 2,4-dihydroxybenzaldehyde 4-ethylthiosemicarbazone, see: Kayed et al. (2008); Tan et al. (2008).

Computing details top

Data collection: APEX2 software [SMART?] (Bruker, 2009); cell refinement: SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2010).

Figures top
[Figure 1] Fig. 1. Thermal ellipsoid plot (Barbour, 2001) of C10H13N3O3S at the 70% probability level; hydrogen atoms are drawn as spheres of arbitrary radius.
1-(2,3,4-Trihydroxybenzylidene)-4-ethylthiosemicarbazide top
Crystal data top
C10H13N3O3SF(000) = 536
Mr = 255.29Dx = 1.452 Mg m3
Monoclinic, P21/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybcCell parameters from 5730 reflections
a = 7.5668 (5) Åθ = 2.4–28.3°
b = 14.6754 (10) ŵ = 0.28 mm1
c = 10.8700 (7) ÅT = 100 K
β = 104.711 (1)°Prism, colorless
V = 1167.50 (13) Å30.30 × 0.20 × 0.10 mm
Z = 4
Data collection top
Bruker SMART APEX
diffractometer
2660 independent reflections
Radiation source: fine-focus sealed tube2364 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.026
ω scansθmax = 27.5°, θmin = 2.4°
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)
h = 99
Tmin = 0.921, Tmax = 0.973k = 1919
10870 measured reflectionsl = 1413
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.029Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.082H atoms treated by a mixture of independent and constrained refinement
S = 1.04 w = 1/[σ2(Fo2) + (0.0437P)2 + 0.4981P]
where P = (Fo2 + 2Fc2)/3
2660 reflections(Δ/σ)max = 0.001
174 parametersΔρmax = 0.34 e Å3
5 restraintsΔρmin = 0.22 e Å3
Crystal data top
C10H13N3O3SV = 1167.50 (13) Å3
Mr = 255.29Z = 4
Monoclinic, P21/cMo Kα radiation
a = 7.5668 (5) ŵ = 0.28 mm1
b = 14.6754 (10) ÅT = 100 K
c = 10.8700 (7) Å0.30 × 0.20 × 0.10 mm
β = 104.711 (1)°
Data collection top
Bruker SMART APEX
diffractometer
2660 independent reflections
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)
2364 reflections with I > 2σ(I)
Tmin = 0.921, Tmax = 0.973Rint = 0.026
10870 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0295 restraints
wR(F2) = 0.082H atoms treated by a mixture of independent and constrained refinement
S = 1.04Δρmax = 0.34 e Å3
2660 reflectionsΔρmin = 0.22 e Å3
174 parameters
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
S10.70929 (4)0.59538 (2)0.58991 (3)0.01292 (10)
O10.50792 (13)0.28115 (6)0.03429 (8)0.0153 (2)
O20.54351 (14)0.26317 (6)0.20701 (9)0.0176 (2)
O30.73079 (14)0.39064 (6)0.30899 (9)0.0167 (2)
N10.73526 (15)0.49383 (7)0.26113 (10)0.0133 (2)
N20.69204 (15)0.50533 (7)0.37631 (10)0.0132 (2)
N30.91494 (16)0.61386 (8)0.42338 (11)0.0150 (2)
C10.66760 (17)0.42305 (8)0.05845 (12)0.0114 (2)
C20.59670 (17)0.34728 (8)0.01603 (12)0.0114 (2)
C30.61719 (17)0.33861 (8)0.13940 (12)0.0122 (2)
C40.71179 (18)0.40505 (8)0.18813 (12)0.0123 (2)
C50.78291 (17)0.48082 (9)0.11516 (12)0.0134 (3)
H50.84740.52610.14860.016*
C60.75918 (17)0.48975 (8)0.00612 (12)0.0127 (2)
H60.80590.54210.05500.015*
C70.64158 (17)0.43394 (8)0.18633 (12)0.0124 (2)
H70.55590.39690.21380.015*
C80.77826 (17)0.57177 (8)0.45530 (12)0.0118 (2)
C91.01416 (19)0.69298 (9)0.48851 (13)0.0168 (3)
H9A1.14560.68690.49170.020*
H9B1.00200.69510.57700.020*
C100.9416 (2)0.78045 (10)0.42107 (17)0.0283 (4)
H10A1.00800.83230.46780.042*
H10B0.81120.78630.41710.042*
H10C0.95840.77950.33460.042*
H1O0.472 (3)0.2409 (11)0.0195 (16)0.039 (6)*
H2O0.554 (3)0.2673 (15)0.2817 (11)0.045 (6)*
H3O0.731 (3)0.4420 (9)0.343 (2)0.047 (6)*
H2N0.5992 (17)0.4785 (11)0.3933 (15)0.021 (4)*
H3N0.936 (2)0.5975 (11)0.3531 (11)0.023 (4)*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
S10.01775 (18)0.01251 (16)0.00958 (16)0.00113 (11)0.00547 (12)0.00111 (10)
O10.0228 (5)0.0130 (4)0.0113 (4)0.0065 (4)0.0064 (4)0.0022 (3)
O20.0281 (5)0.0147 (5)0.0114 (5)0.0064 (4)0.0078 (4)0.0041 (4)
O30.0259 (5)0.0153 (5)0.0110 (5)0.0000 (4)0.0089 (4)0.0007 (3)
N10.0157 (5)0.0150 (5)0.0104 (5)0.0001 (4)0.0056 (4)0.0018 (4)
N20.0155 (5)0.0149 (5)0.0109 (5)0.0040 (4)0.0063 (4)0.0028 (4)
N30.0185 (6)0.0158 (5)0.0126 (5)0.0046 (4)0.0075 (4)0.0047 (4)
C10.0116 (6)0.0122 (5)0.0103 (6)0.0016 (4)0.0024 (4)0.0003 (4)
C20.0118 (6)0.0105 (5)0.0124 (6)0.0007 (4)0.0038 (5)0.0015 (4)
C30.0144 (6)0.0109 (6)0.0109 (6)0.0011 (5)0.0023 (5)0.0012 (4)
C40.0137 (6)0.0144 (6)0.0096 (6)0.0034 (5)0.0042 (5)0.0009 (4)
C50.0132 (6)0.0129 (6)0.0144 (6)0.0004 (5)0.0040 (5)0.0027 (5)
C60.0127 (6)0.0118 (6)0.0126 (6)0.0003 (5)0.0016 (5)0.0010 (5)
C70.0138 (6)0.0111 (6)0.0128 (6)0.0005 (5)0.0042 (5)0.0002 (4)
C80.0140 (6)0.0104 (5)0.0110 (6)0.0015 (5)0.0028 (5)0.0011 (4)
C90.0182 (7)0.0164 (6)0.0167 (6)0.0067 (5)0.0060 (5)0.0043 (5)
C100.0201 (8)0.0167 (7)0.0444 (10)0.0032 (6)0.0012 (7)0.0005 (6)
Geometric parameters (Å, º) top
S1—C81.7092 (13)C1—C61.4007 (17)
O1—C21.3707 (15)C1—C71.4613 (17)
O1—H1O0.827 (9)C2—C31.3944 (17)
O2—C31.3669 (15)C3—C41.3914 (17)
O2—H2O0.838 (9)C4—C51.3923 (17)
O3—C41.3738 (15)C5—C61.3811 (17)
O3—H3O0.841 (9)C5—H50.9500
N1—C71.2819 (16)C6—H60.9500
N1—N21.3824 (14)C7—H70.9500
N2—C81.3523 (16)C9—C101.511 (2)
N2—H2N0.866 (9)C9—H9A0.9900
N3—C81.3244 (17)C9—H9B0.9900
N3—C91.4639 (16)C10—H10A0.9800
N3—H3N0.853 (9)C10—H10B0.9800
C1—C21.3996 (17)C10—H10C0.9800
C2—O1—H1O109.3 (15)C6—C5—H5120.2
C3—O2—H2O109.6 (15)C4—C5—H5120.2
C4—O3—H3O107.5 (15)C5—C6—C1121.26 (11)
C7—N1—N2115.99 (11)C5—C6—H6119.4
C8—N2—N1118.43 (11)C1—C6—H6119.4
C8—N2—H2N118.7 (11)N1—C7—C1119.47 (11)
N1—N2—H2N122.0 (11)N1—C7—H7120.3
C8—N3—C9125.59 (11)C1—C7—H7120.3
C8—N3—H3N116.0 (12)N3—C8—N2116.93 (11)
C9—N3—H3N117.8 (12)N3—C8—S1123.94 (10)
C2—C1—C6118.47 (11)N2—C8—S1119.13 (10)
C2—C1—C7120.84 (11)N3—C9—C10111.14 (11)
C6—C1—C7120.66 (11)N3—C9—H9A109.4
O1—C2—C3120.30 (11)C10—C9—H9A109.4
O1—C2—C1119.11 (11)N3—C9—H9B109.4
C3—C2—C1120.59 (11)C10—C9—H9B109.4
O2—C3—C4122.81 (11)H9A—C9—H9B108.0
O2—C3—C2117.46 (11)C9—C10—H10A109.5
C4—C3—C2119.72 (11)C9—C10—H10B109.5
O3—C4—C3116.43 (11)H10A—C10—H10B109.5
O3—C4—C5123.27 (11)C9—C10—H10C109.5
C3—C4—C5120.30 (12)H10A—C10—H10C109.5
C6—C5—C4119.63 (12)H10B—C10—H10C109.5
C7—N1—N2—C8175.71 (11)O3—C4—C5—C6179.39 (12)
C6—C1—C2—O1179.53 (11)C3—C4—C5—C60.03 (19)
C7—C1—C2—O12.47 (18)C4—C5—C6—C11.21 (19)
C6—C1—C2—C30.05 (18)C2—C1—C6—C51.25 (19)
C7—C1—C2—C3178.06 (11)C7—C1—C6—C5179.26 (12)
O1—C2—C3—O20.95 (18)N2—N1—C7—C1174.75 (11)
C1—C2—C3—O2179.58 (11)C2—C1—C7—N1167.00 (12)
O1—C2—C3—C4178.31 (11)C6—C1—C7—N115.04 (18)
C1—C2—C3—C41.16 (19)C9—N3—C8—N2173.77 (12)
O2—C3—C4—O30.96 (18)C9—N3—C8—S17.36 (19)
C2—C3—C4—O3178.26 (11)N1—N2—C8—N38.18 (17)
O2—C3—C4—C5179.58 (12)N1—N2—C8—S1172.89 (9)
C2—C3—C4—C51.20 (19)C8—N3—C9—C1097.70 (16)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O1—H1o···O20.83 (1)2.26 (2)2.717 (1)115 (2)
O1—H1o···S1i0.83 (1)2.55 (1)3.291 (1)150 (2)
O2—H2o···O30.84 (1)2.31 (2)2.745 (1)112 (2)
O2—H2o···O1ii0.84 (1)2.07 (1)2.832 (1)151 (2)
O3—H3o···S1iii0.84 (1)2.36 (1)3.189 (1)170 (2)
N2—H2N···S1iv0.872.623.480 (1)171
Symmetry codes: (i) x+1, y1/2, z+1/2; (ii) x, y+1/2, z1/2; (iii) x, y, z1; (iv) x+1, y+1, z+1.

Experimental details

Crystal data
Chemical formulaC10H13N3O3S
Mr255.29
Crystal system, space groupMonoclinic, P21/c
Temperature (K)100
a, b, c (Å)7.5668 (5), 14.6754 (10), 10.8700 (7)
β (°) 104.711 (1)
V3)1167.50 (13)
Z4
Radiation typeMo Kα
µ (mm1)0.28
Crystal size (mm)0.30 × 0.20 × 0.10
Data collection
DiffractometerBruker SMART APEX
diffractometer
Absorption correctionMulti-scan
(SADABS; Sheldrick, 1996)
Tmin, Tmax0.921, 0.973
No. of measured, independent and
observed [I > 2σ(I)] reflections
10870, 2660, 2364
Rint0.026
(sin θ/λ)max1)0.649
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.029, 0.082, 1.04
No. of reflections2660
No. of parameters174
No. of restraints5
H-atom treatmentH atoms treated by a mixture of independent and constrained refinement
Δρmax, Δρmin (e Å3)0.34, 0.22

Computer programs: APEX2 software [SMART?] (Bruker, 2009), SAINT (Bruker, 2009), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), X-SEED (Barbour, 2001), publCIF (Westrip, 2010).

Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O1—H1o···O20.83 (1)2.26 (2)2.717 (1)115 (2)
O1—H1o···S1i0.83 (1)2.55 (1)3.291 (1)150 (2)
O2—H2o···O30.84 (1)2.31 (2)2.745 (1)112 (2)
O2—H2o···O1ii0.84 (1)2.07 (1)2.832 (1)151 (2)
O3—H3o···S1iii0.84 (1)2.36 (1)3.189 (1)170 (2)
N2—H2N···S1iv0.872.623.480 (1)171.4
Symmetry codes: (i) x+1, y1/2, z+1/2; (ii) x, y+1/2, z1/2; (iii) x, y, z1; (iv) x+1, y+1, z+1.
 

Acknowledgements

The authors thank the University of Malaya (grant No. PS354/2009) and MOHE (grant No. FRGS-FP001/2009) for supporting this study. HBS thanks the Libyan People's Bureau in Malaysia for a scholarship.

References

First citationBarbour, L. J. (2001). J. Supramol. Chem. 1, 189–191.  CrossRef CAS Google Scholar
First citationBruker (2009). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.  Google Scholar
First citationKayed, S. F., Farina, Y., Baba, I. & Simpson, J. (2008). Acta Cryst. E64, o824–o825.  Web of Science CSD CrossRef IUCr Journals Google Scholar
First citationSheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.  Google Scholar
First citationSheldrick, G. M. (2008). Acta Cryst. A64, 112–122.  Web of Science CrossRef CAS IUCr Journals Google Scholar
First citationTan, K. W., Ng, C. H., Maah, M. J. & Ng, S. W. (2008). Acta Cryst. E64, o2123.  Web of Science CrossRef IUCr Journals Google Scholar
First citationWestrip, S. P. (2010). publCIF. In preparation.  Google Scholar

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